diff --git a/dist/osx/bundle.sh b/dist/osx/bundle.sh
index 63ac0e7..256ec19 100755
--- a/dist/osx/bundle.sh
+++ b/dist/osx/bundle.sh
@@ -14,7 +14,7 @@ ige-mac-bundler spek.bundle
 
 cd Spek.app/Contents/Resources
 mkdir share/locale_
-mv share/locale/{cs,de,es,fr,it,nl,pl,pt_BR,ru,sv,uk} share/locale_/
+mv share/locale/{cs,de,es,fr,it,ja,nl,pl,pt_BR,ru,sv,uk} share/locale_/
 rm -fr share/locale
 mv share/locale_ share/locale
 cd ../../..
diff --git a/dist/win/bundle.sh b/dist/win/bundle.sh
index 32778c5..f7aaabe 100755
--- a/dist/win/bundle.sh
+++ b/dist/win/bundle.sh
@@ -61,7 +61,7 @@ cp /usr/bin/avutil-51.dll bin/
 # Clean up
 mv bin/spek.exe ../
 mkdir share/locale_
-mv share/locale/{cs,de,es,fr,it,nl,pl,pt_BR,ru,sv,uk} share/locale_/
+mv share/locale/{cs,de,es,fr,it,ja,nl,pl,pt_BR,ru,sv,uk} share/locale_/
 rm -fr share/locale
 mv share/locale_ share/locale
 rm -fr doc
diff --git a/src/spek-preferences-dialog.vala b/src/spek-preferences-dialog.vala
index 3c313e2..e3577cd 100644
--- a/src/spek-preferences-dialog.vala
+++ b/src/spek-preferences-dialog.vala
@@ -30,6 +30,7 @@ namespace Spek {
             {"es", "Español"},
             {"fr", "Français"},
             {"it", "Italiano"},
+            {"ja", "日本語"},
             {"nl", "Nederlands"},
             {"pl", "Polski"},
             {"pt_BR", "Português brasileiro"},